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Developed a full-stack ERC-1155 NFT ticketing platform processing 10,000+ transactions at 98% success rate. Engineered a Stripe-to-NFT payment bridge with webhook verification and automated on-chain NFT delivery.
INSID3RS.IO wanted to replace traditional paper and QR-code event tickets with NFTs — giving attendees verifiable, tradeable digital passes. The core challenge was bridging fiat payment (Stripe) with on-chain NFT delivery reliably: a failed webhook or a slow blockchain confirmation could leave a paying customer without their ticket. The platform also needed to handle ticket resale, transfer restrictions, and real-time door-scanning validation at events.
We engineered a Stripe webhook pipeline with idempotent event processing to prevent double-minting on retries. ERC-1155 smart contracts handle both fungible (general admission) and non-fungible (VIP) ticket types in a single contract. IPFS stores ticket metadata and artwork. Post-payment, NFT delivery is queued and retried with exponential backoff until confirmed on-chain. A separate venue scanning module validates ticket ownership via wallet signature at the door.
